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Finding the Fourth Proportional to 273,370,073.20, 410,055,109.80 and 81,893,849.20

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Solution

The fourth proportional to 273,370,073.20, 410,055,109.80 and 81,893,849.20 is: 122,840,773.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    273,370,073.20 : 410,055,109.80 = 81,893,849.20 : x
  2. Step 2: Convert to fraction form
    273,370,073.20/410,055,109.80 = 81,893,849.20/x
  3. Step 3: Cross multiply
    273,370,073.20x = 410,055,109.80 × 81,893,849.20
  4. Step 4: Simplify right side
    273,370,073.20x = 33,580,991,325,650,644
  5. Step 5: Solve for x
    x = 33,580,991,325,650,644/273,370,073.20
  6. Step 6: Final answer
    x = 122,840,773.80

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.